Rotary evaporator for accurately and quantitatively recovering multiple solvents or concentrating multiple samples at one time

    公开(公告)号:US12115475B2

    公开(公告)日:2024-10-15

    申请号:US17687897

    申请日:2022-03-07

    发明人: Shuyao Wen Wenda Li

    摘要: A rotary evaporator for accurately and quantitatively recovering multiple solvents or concentrating multiple samples at once is provided. At least two distillation flasks are included. The distillation flasks are connected in sequence and rotated along the same axis. A bracket is disposed at the lower part between the distillation flasks for support. Instead of one rotation axis, at least two axes are included. Each rotation axis is provided with at least one distillation flask. The number of condensers and the number of collecting flasks increase correspondingly with the number of distillation flasks. If the number of distillation flasks on one rotation axis is greater than 1, a connector is disposed between the condenser and a transmitter. The collecting flask can be changed into a collector with the function of accurately quantitating and discharging distillates. Each distillation flask may be connected to a concentrated liquid quantitative assembly.

    Contact lens
    10.
    外观设计

    公开(公告)号:USD1045953S1

    公开(公告)日:2024-10-08

    申请号:US29807418

    申请日:2021-09-10

    摘要: FIG. 1 is a perspective view of a contact lens, showing our new design.
    FIG. 2 is a front elevation view of the contact lens.
    FIG. 3 is a rear elevation view of the contact lens.
    FIG. 4 is a right side elevation view of the contact lens.
    FIG. 5 is a left side elevation view of the contact lens.
    FIG. 6 is a top plan view of the contact lens.
    FIG. 7 is a bottom plan view of the contact lens.
    FIG. 8 is a perspective view of a second embodiment of the contact lens.
    FIG. 9 is a front elevation view of a second embodiment of the contact lens.
    FIG. 10 is a rear elevation view of a second embodiment of the contact lens.
    FIG. 11 is a right side elevation view of a second embodiment of the contact lens.
    FIG. 12 is a left side elevation view of a second embodiment of the contact lens.
    FIG. 13 is a top plan view of a second embodiment of the contact lens; and,
    FIG. 14 is a bottom plan view of a second embodiment of the contact lens.
    The broken lines shown in the figures depict portions of the contact lens that form no part of the claimed design.